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. 2020 Mar;66(3):314-320.
doi: 10.1590/1806-9282.66.3.314.

Sedentary behavior, physical activity and body composition in adults

Gerson Luis de Moraes Ferrari  1   2 , Eduardo Rossato de Victo  2 , Irina Kovalskys  3 , Aline Veroneze de Mello  4 , Agatha Nogueira Previdelli  5 , Dirceu Solé  2 , Mauro Fisberg  6
Affiliations
Free article

Sedentary behavior, physical activity and body composition in adults

Gerson Luis de Moraes Ferrari et al. Rev Assoc Med Bras (1992). 2020 Mar.
Free article

Abstract

Objective: We investigated the associations between objectively assessed sedentary behavior (SB) and moderate-to-vigorous physical activity (MVPA) and body composition variables among a representative sample of Brazilian adults.

Methods: Using an accelerometer, SB and MVPA were monitored for at least 5 days in 524 participants (261 men; age, 18-65 years). Each minute epoch was classified as sedentary or spent in light, moderate, or vigorous physical activity (LPA, MPA, and VPA, respectively). The measured body composition variables included abdominal perimeter (AP) and neck circumference (NC).

Results: Men accumulated significantly more min/day of MPA (37.82 versus 27.28), VPA (1.10 versus 0.31), MVPA (39.02 versus 27.61), and steps/day (14,978 versus 13,443) than women (p<.001). In men, MPA, VPA, MVPA, and steps/day were negatively associated with AP (p<.05) independently of SB. Only VPA was significantly associated with NC (β= 0.113; p=.002). In women, only SB was significantly associated with AP (β= 0.003; p=.031). There were no significant associations between physical activity intensities and body composition in women.

Conclusions: Our findings on the unequal association of physical activity with body composition variables between sexes can help inform future intervention strategies in Brasil.

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